pragma solidity ^0.4.24;
/**
* @title IERC165
* @dev https://github.com/ethereum/EIPs/blob/master/EIPS/eip-165.md
*/
interface IERC165 {
/**
* @notice Query if a contract implements an interface
* @param interfaceId The interface identifier, as specified in ERC-165
* @dev Interface identification is specified in ERC-165. This function
* uses less than 30,000 gas.
*/
function supportsInterface(bytes4 interfaceId)
external
view
returns (bool);
}
/**
* @title ERC165
* @author Matt Condon (@shrugs)
* @dev Implements ERC165 using a lookup table.
*/
contract ERC165 is IERC165 {
bytes4 private constant _InterfaceId_ERC165 = 0x01ffc9a7;
/**
* 0x01ffc9a7 ===
* bytes4(keccak256('supportsInterface(bytes4)'))
*/
/**
* @dev a mapping of interface id to whether or not it's supported
*/
mapping(bytes4 => bool) internal _supportedInterfaces;
/**
* @dev A contract implementing SupportsInterfaceWithLookup
* implement ERC165 itself
*/
constructor()
public
{
_registerInterface(_InterfaceId_ERC165);
}
/**
* @dev implement supportsInterface(bytes4) using a lookup table
*/
function supportsInterface(bytes4 interfaceId)
external
view
returns (bool)
{
return _supportedInterfaces[interfaceId];
}
/**
* @dev private method for registering an interface
*/
function _registerInterface(bytes4 interfaceId)
internal
{
require(interfaceId != 0xffffffff);
_supportedInterfaces[interfaceId] = true;
}
}
/**
* @title ERC721 Non-Fungible Token Standard basic interface
* @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
*/
contract IERC721 is IERC165 {
event Transfer(
address indexed from,
address indexed to,
uint256 indexed tokenId
);
event Approval(
address indexed owner,
address indexed approved,
uint256 indexed tokenId
);
event ApprovalForAll(
address indexed owner,
address indexed operator,
bool approved
);
function balanceOf(address owner) public view returns (uint256 balance);
function ownerOf(uint256 tokenId) public view returns (address owner);
function approve(address to, uint256 tokenId) public;
function getApproved(uint256 tokenId)
public view returns (address operator);
function setApprovalForAll(address operator, bool _approved) public;
function isApprovedForAll(address owner, address operator)
public view returns (bool);
function transferFrom(address from, address to, uint256 tokenId) public;
function safeTransferFrom(address from, address to, uint256 tokenId)
public;
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes data
)
public;
}
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
contract IERC721Receiver {
/**
* @notice Handle the receipt of an NFT
* @dev The ERC721 smart contract calls this function on the recipient
* after a `safeTransfer`. This function MUST return the function selector,
* otherwise the caller will revert the transaction. The selector to be
* returned can be obtained as `this.onERC721Received.selector`. This
* function MAY throw to revert and reject the transfer.
* Note: the ERC721 contract address is always the message sender.
* @param operator The address which called `safeTransferFrom` function
* @param from The address which previously owned the token
* @param tokenId The NFT identifier which is being transferred
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes data
)
public
returns(bytes4);
}
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0);
return a % b;
}
}
/**
* Utility library of inline functions on addresses
*/
library Address {
/**
* Returns whether the target address is a contract
* @dev This function will return false if invoked during the constructor of a contract,
* as the code is not actually created until after the constructor finishes.
* @param account address of the account to check
* @return whether the target address is a contract
*/
function isContract(address account) internal view returns (bool) {
uint256 size;
// XXX Currently there is no better way to check if there is a contract in an address
// than to check the size of the code at that address.
// See https://ethereum.stackexchange.com/a/14016/36603
// for more details about how this works.
// TODO Check this again before the Serenity release, because all addresses will be
// contracts then.
// solium-disable-next-line security/no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
}
/**
* @title ERC721 Non-Fungible Token Standard basic implementation
* @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
*/
contract ERC721 is ERC165, IERC721 {
using SafeMath for uint256;
using Address for address;
// Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
// which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;
// Mapping from token ID to owner
mapping (uint256 => address) private _tokenOwner;
// Mapping from token ID to approved address
mapping (uint256 => address) private _tokenApprovals;
// Mapping from owner to number of owned token
mapping (address => uint256) private _ownedTokensCount;
// Mapping from owner to operator approvals
mapping (address => mapping (address => bool)) private _operatorApprovals;
bytes4 private constant _InterfaceId_ERC721 = 0x80ac58cd;
/*
* 0x80ac58cd ===
* bytes4(keccak256('balanceOf(address)')) ^
* bytes4(keccak256('ownerOf(uint256)')) ^
* bytes4(keccak256('approve(address,uint256)')) ^
* bytes4(keccak256('getApproved(uint256)')) ^
* bytes4(keccak256('setApprovalForAll(address,bool)')) ^
* bytes4(keccak256('isApprovedForAll(address,address)')) ^
* bytes4(keccak256('transferFrom(address,address,uint256)')) ^
* bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^
* bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)'))
*/
constructor()
public
{
// register the supported interfaces to conform to ERC721 via ERC165
_registerInterface(_InterfaceId_ERC721);
}
/**
* @dev Gets the balance of the specified address
* @param owner address to query the balance of
* @return uint256 representing the amount owned by the passed address
*/
function balanceOf(address owner) public view returns (uint256) {
require(owner != address(0));
return _ownedTokensCount[owner];
}
/**
* @dev Gets the owner of the specified token ID
* @param tokenId uint256 ID of the token to query the owner of
* @return owner address currently marked as the owner of the given token ID
*/
function ownerOf(uint256 tokenId) public view returns (address) {
address owner = _tokenOwner[tokenId];
require(owner != address(0));
return owner;
}
/**
* @dev Approves another address to transfer the given token ID
* The zero address indicates there is no approved address.
* There can only be one approved address per token at a given time.
* Can only be called by the token owner or an approved operator.
* @param to address to be approved for the given token ID
* @param tokenId uint256 ID of the token to be approved
*/
function approve(address to, uint256 tokenId) public {
address owner = ownerOf(tokenId);
require(to != owner);
require(msg.sender == owner || isApprovedForAll(owner, msg.sender));
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
/**
* @dev Gets the approved address for a token ID, or zero if no address set
* Reverts if the token ID does not exist.
* @param tokenId uint256 ID of the token to query the approval of
* @return address currently approved for the given token ID
*/
function getApproved(uint256 tokenId) public view returns (address) {
require(_exists(tokenId));
return _tokenApprovals[tokenId];
}
/**
* @dev Sets or unsets the approval of a given operator
* An operator is allowed to transfer all tokens of the sender on their behalf
* @param to operator address to set the approval
* @param approved representing the status of the approval to be set
*/
function setApprovalForAll(address to, bool approved) public {
require(to != msg.sender);
_operatorApprovals[msg.sender][to] = approved;
emit ApprovalForAll(msg.sender, to, approved);
}
/**
* @dev Tells whether an operator is approved by a given owner
* @param owner owner address which you want to query the approval of
* @param operator operator address which you want to query the approval of
* @return bool whether the given operator is approved by the given owner
*/
function isApprovedForAll(
address owner,
address operator
)
public
view
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev Transfers the ownership of a given token ID to another address
* Usage of this method is discouraged, use `safeTransferFrom` whenever possible
* Requires the msg sender to be the owner, approved, or operator
* @param from current owner of the token
* @param to address to receive the ownership of the given token ID
* @param tokenId uint256 ID of the token to be transferred
*/
function transferFrom(
address from,
address to,
uint256 tokenId
)
public
{
require(_isApprovedOrOwner(msg.sender, tokenId));
require(to != address(0));
_clearApproval(from, tokenId);
_removeTokenFrom(from, tokenId);
_addTokenTo(to, tokenId);
emit Transfer(from, to, tokenId);
}
/**
* @dev Safely transfers the ownership of a given token ID to another address
* If the target address is a contract, it must implement `onERC721Received`,
* which is called upon a safe transfer, and return the magic value
* `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
* the transfer is reverted.
*
* Requires the msg sender to be the owner, approved, or operator
* @param from current owner of the token
* @param to address to receive the ownership of the given token ID
* @param tokenId uint256 ID of the token to be transferred
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
)
public
{
// solium-disable-next-line arg-overflow
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev Safely transfers the ownership of a given token ID to another address
* If the target address is a contract, it must implement `onERC721Received`,
* which is called upon a safe transfer, and return the magic value
* `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
* the transfer is reverted.
* Requires the msg sender to be the owner, approved, or operator
* @param from current owner of the token
* @param to address to receive the ownership of the given token ID
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes data to send along with a safe transfer check
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes _data
)
public
{
transferFrom(from, to, tokenId);
// solium-disable-next-line arg-overflow
require(_checkAndCallSafeTransfer(from, to, tokenId, _data));
}
/**
* @dev Returns whether the specified token exists
* @param tokenId uint256 ID of the token to query the existence of
* @return whether the token exists
*/
function _exists(uint256 tokenId) internal view returns (bool) {
address owner = _tokenOwner[tokenId];
return owner != address(0);
}
/**
* @dev Returns whether the given spender can transfer a given token ID
* @param spender address of the spender to query
* @param tokenId uint256 ID of the token to be transferred
* @return bool whether the msg.sender is approved for the given token ID,
* is an operator of the owner, or is the owner of the token
*/
function _isApprovedOrOwner(
address spender,
uint256 tokenId
)
internal
view
returns (bool)
{
address owner = ownerOf(tokenId);
// Disable solium check because of
// https://github.com/duaraghav8/Solium/issues/175
// solium-disable-next-line operator-whitespace
return (
spender == owner ||
getApproved(tokenId) == spender ||
isApprovedForAll(owner, spender)
);
}
/**
* @dev Internal function to mint a new token
* Reverts if the given token ID already exists
* @param to The address that will own the minted token
* @param tokenId uint256 ID of the token to be minted by the msg.sender
*/
function _mint(address to, uint256 tokenId) internal {
require(to != address(0));
_addTokenTo(to, tokenId);
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Internal function to burn a specific token
* Reverts if the token does not exist
* @param tokenId uint256 ID of the token being burned by the msg.sender
*/
function _burn(address owner, uint256 tokenId) internal {
_clearApproval(owner, tokenId);
_removeTokenFrom(owner, tokenId);
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Internal function to clear current approval of a given token ID
* Reverts if the given address is not indeed the owner of the token
* @param owner owner of the token
* @param tokenId uint256 ID of the token to be transferred
*/
function _clearApproval(address owner, uint256 tokenId) internal {
require(ownerOf(tokenId) == owner);
if (_tokenApprovals[tokenId] != address(0)) {
_tokenApprovals[tokenId] = address(0);
}
}
/**
* @dev Internal function to add a token ID to the list of a given address
* @param to address representing the new owner of the given token ID
* @param tokenId uint256 ID of the token to be added to the tokens list of the given address
*/
function _addTokenTo(address to, uint256 tokenId) internal {
require(_tokenOwner[tokenId] == address(0));
_tokenOwner[tokenId] = to;
_ownedTokensCount[to] = _ownedTokensCount[to].add(1);
}
/**
* @dev Internal function to remove a token ID from the list of a given address
* @param from address representing the previous owner of the given token ID
* @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
*/
function _removeTokenFrom(address from, uint256 tokenId) internal {
require(ownerOf(tokenId) == from);
_ownedTokensCount[from] = _ownedTokensCount[from].sub(1);
_tokenOwner[tokenId] = address(0);
}
/**
* @dev Internal function to invoke `onERC721Received` on a target address
* The call is not executed if the target address is not a contract
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return whether the call correctly returned the expected magic value
*/
function _checkAndCallSafeTransfer(
address from,
address to,
uint256 tokenId,
bytes _data
)
internal
returns (bool)
{
if (!to.isContract()) {
return true;
}
bytes4 retval = IERC721Receiver(to).onERC721Received(
msg.sender, from, tokenId, _data);
return (retval == _ERC721_RECEIVED);
}
}
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
*/
contract IERC721Enumerable is IERC721 {
function totalSupply() public view returns (uint256);
function tokenOfOwnerByIndex(
address owner,
uint256 index
)
public
view
returns (uint256 tokenId);
function tokenByIndex(uint256 index) public view returns (uint256);
}
contract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {
// Mapping from owner to list of owned token IDs
mapping(address => uint256[]) private _ownedTokens;
// Mapping from token ID to index of the owner tokens list
mapping(uint256 => uint256) private _ownedTokensIndex;
// Array with all token ids, used for enumeration
uint256[] private _allTokens;
// Mapping from token id to position in the allTokens array
mapping(uint256 => uint256) private _allTokensIndex;
bytes4 private constant _InterfaceId_ERC721Enumerable = 0x780e9d63;
/**
* 0x780e9d63 ===
* bytes4(keccak256('totalSupply()')) ^
* bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) ^
* bytes4(keccak256('tokenByIndex(uint256)'))
*/
/**
* @dev Constructor function
*/
constructor() public {
// register the supported interface to conform to ERC721 via ERC165
_registerInterface(_InterfaceId_ERC721Enumerable);
}
/**
* @dev Gets the token ID at a given index of the tokens list of the requested owner
* @param owner address owning the tokens list to be accessed
* @param index uint256 representing the index to be accessed of the requested tokens list
* @return uint256 token ID at the given index of the tokens list owned by the requested address
*/
function tokenOfOwnerByIndex(
address owner,
uint256 index
)
public
view
returns (uint256)
{
require(index < balanceOf(owner));
return _ownedTokens[owner][index];
}
/**
* @dev Gets the total amount of tokens stored by the contract
* @return uint256 representing the total amount of tokens
*/
function totalSupply() public view returns (uint256) {
return _allTokens.length;
}
/**
* @dev Gets the token ID at a given index of all the tokens in this contract
* Reverts if the index is greater or equal to the total number of tokens
* @param index uint256 representing the index to be accessed of the tokens list
* @return uint256 token ID at the given index of the tokens list
*/
function tokenByIndex(uint256 index) public view returns (uint256) {
require(index < totalSupply());
return _allTokens[index];
}
/**
* @dev Internal function to add a token ID to the list of a given address
* @param to address representing the new owner of the given token ID
* @param tokenId uint256 ID of the token to be added to the tokens list of the given address
*/
function _addTokenTo(address to, uint256 tokenId) internal {
super._addTokenTo(to, tokenId);
uint256 length = _ownedTokens[to].length;
_ownedTokens[to].push(tokenId);
_ownedTokensIndex[tokenId] = length;
}
/**
* @dev Internal function to remove a token ID from the list of a given address
* @param from address representing the previous owner of the given token ID
* @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
*/
function _removeTokenFrom(address from, uint256 tokenId) internal {
super._removeTokenFrom(from, tokenId);
// To prevent a gap in the array, we store the last token in the index of the token to delete, and
// then delete the last slot.
uint256 tokenIndex = _ownedTokensIndex[tokenId];
uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);
uint256 lastToken = _ownedTokens[from][lastTokenIndex];
_ownedTokens[from][tokenIndex] = lastToken;
// This also deletes the contents at the last position of the array
_ownedTokens[from].length--;
// Note that this will handle single-element arrays. In that case, both tokenIndex and lastTokenIndex are going to
// be zero. Then we can make sure that we will remove tokenId from the ownedTokens list since we are first swapping
// the lastToken to the first position, and then dropping the element placed in the last position of the list
_ownedTokensIndex[tokenId] = 0;
_ownedTokensIndex[lastToken] = tokenIndex;
}
/**
* @dev Internal function to mint a new token
* Reverts if the given token ID already exists
* @param to address the beneficiary that will own the minted token
* @param tokenId uint256 ID of the token to be minted by the msg.sender
*/
function _mint(address to, uint256 tokenId) internal {
super._mint(to, tokenId);
_allTokensIndex[tokenId] = _allTokens.length;
_allTokens.push(tokenId);
}
/**
* @dev Internal function to burn a specific token
* Reverts if the token does not exist
* @param owner owner of the token to burn
* @param tokenId uint256 ID of the token being burned by the msg.sender
*/
function _burn(address owner, uint256 tokenId) internal {
super._burn(owner, tokenId);
// Reorg all tokens array
uint256 tokenIndex = _allTokensIndex[tokenId];
uint256 lastTokenIndex = _allTokens.length.sub(1);
uint256 lastToken = _allTokens[lastTokenIndex];
_allTokens[tokenIndex] = lastToken;
_allTokens[lastTokenIndex] = 0;
_allTokens.length--;
_allTokensIndex[tokenId] = 0;
_allTokensIndex[lastToken] = tokenIndex;
}
}
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address private _owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor() public {
_owner = msg.sender;
}
/**
* @return the address of the owner.
*/
function owner() public view returns(address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier contract_onlyOwner() {
require(isOwner());
_;
}
/**
* @return true if `msg.sender` is the owner of the contract.
*/
function isOwner() public view returns(bool) {
return msg.sender == _owner;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public contract_onlyOwner {
emit OwnershipRenounced(_owner);
_owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public contract_onlyOwner {
_transferOwnership(newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function _transferOwnership(address newOwner) internal {
require(newOwner != address(0));
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
/**
* @title Helper to allow various addresses to mint Chibis
* @dev Adds addresses to mapping that can be true/false queried
*/
contract MintWallets is Ownable {
mapping (address => bool) internal _mintWallets;
constructor () public {
_mintWallets[msg.sender] = true;
}
/**
* @dev Add a wallet/contract to the mint function functionality
* @param _address The address/contract to allow minting
*/
function setMintAddress(address _address, bool _active) public contract_onlyOwner {
_mintWallets[_address] = _active;
}
/**
* @dev Check if wallet is true/false
* @param _address The address/contract to check
*/
function checkMintAllowed(address _address) public view returns (bool) {
return _mintWallets[_address];
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier mintAllowed(address _address) {
require(_mintWallets[_address]);
_;
}
}
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
*/
contract IERC721Metadata is IERC721 {
function name() external view returns (string);
function symbol() external view returns (string);
function tokenURI(uint256 tokenId) public view returns (string);
}
contract ERC721Metadata is ERC165, ERC721, IERC721Metadata, MintWallets {
// Token name
string internal _name;
// Token symbol
string internal _symbol;
string infoUrlPrefix;
bytes4 private constant InterfaceId_ERC721Metadata = 0x5b5e139f;
/**
* 0x5b5e139f ===
* bytes4(keccak256('name()')) ^
* bytes4(keccak256('symbol()')) ^
* bytes4(keccak256('tokenURI(uint256)'))
*/
/**
* @dev Constructor function
*/
constructor(string name, string symbol) public {
_name = name;
_symbol = symbol;
// register the supported interfaces to conform to ERC721 via ERC165
_registerInterface(InterfaceId_ERC721Metadata);
}
/**
* @dev Gets the token name
* @return string representing the token name
*/
function name() external view returns (string) {
return _name;
}
/**
* @dev Gets the token symbol
* @return string representing the token symbol
*/
function symbol() external view returns (string) {
return _symbol;
}
/**
* @dev Returns an URI for a given token ID
* Throws if the token ID does not exist. May return an empty string.
* @param tokenId uint256 ID of the token to query
*/
function tokenURI(uint256 tokenId) public view returns (string) {
require(_exists(tokenId));
string memory uri = strConcat(infoUrlPrefix, uint2str(tokenId));
return uri;
}
/**
* @dev Internal function to burn a specific token
* Reverts if the token does not exist
* @param owner owner of the token to burn
* @param tokenId uint256 ID of the token being burned by the msg.sender
*/
function _burn(address owner, uint256 tokenId) internal {
super._burn(owner, tokenId);
}
// set info url for weapons
function setInfoUrl(string _url) public contract_onlyOwner returns(bool success) {
infoUrlPrefix = _url;
return true;
}
/**
*
* Helper stuff
*
**/
function stringToBytes32(string memory source) internal pure returns (bytes32 result) {
bytes memory tempEmptyStringTest = bytes(source);
if (tempEmptyStringTest.length == 0) {
return 0x0;
}
assembly {
result := mload(add(source, 32))
}
}
function strConcat(string _a, string _b) internal pure returns (string) {
return strConcatDoIt(_a, _b, "", "", "");
}
function strConcatDoIt(string _a, string _b, string _c, string _d, string _e) internal pure returns (string) {
bytes memory _ba = bytes(_a);
bytes memory _bb = bytes(_b);
bytes memory _bc = bytes(_c);
bytes memory _bd = bytes(_d);
bytes memory _be = bytes(_e);
string memory abcde = new string(_ba.length + _bb.length + _bc.length + _bd.length + _be.length);
bytes memory babcde = bytes(abcde);
uint k = 0;
for (uint i = 0; i < _ba.length; i++) babcde[k++] = _ba[i];
for (i = 0; i < _bb.length; i++) babcde[k++] = _bb[i];
for (i = 0; i < _bc.length; i++) babcde[k++] = _bc[i];
for (i = 0; i < _bd.length; i++) babcde[k++] = _bd[i];
for (i = 0; i < _be.length; i++) babcde[k++] = _be[i];
return string(babcde);
}
function uint2str(uint i) internal pure returns (string){
if (i == 0) return "0";
uint j = i;
uint len;
while (j != 0){
len++;
j /= 10;
}
bytes memory bstr = new bytes(len);
uint k = len - 1;
while (i != 0){
bstr[k--] = byte(48 + i % 10);
i /= 10;
}
return string(bstr);
}
function bytesToUint(bytes b) internal pure returns (uint256) {
require(b.length == 32);
bytes32 out;
for (uint i = 0; i < 32; i++) {
out |= bytes32(b[i] & 0xFF) >> (i * 8);
}
return uint256(out);
}
}
/**
* @title Full ERC721 Token
* This implementation includes all the required and some optional functionality of the ERC721 standard
* Moreover, it includes approve all functionality using operator terminology
* @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
*/
contract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {
string name = 'weapons';
string symbol = 'CBW';
constructor() ERC721Metadata(name, symbol)
public
{
}
}
interface ERC20InterfaceClassic {
function transfer(address to, uint tokens) external returns (bool success);
}
interface ERC20Interface {
function transferFrom(address from, address to, uint tokens) external returns (bool success);
function transfer(address to, uint tokens) external;
function balanceOf(address _owner) external view returns (uint256 _balance);
}
contract Referral is Ownable {
uint refIdCounter;
uint refCutPerc;
mapping (address => uint) refId;
mapping (uint => address) refIdAddress;
mapping (uint => uint) refCut;
event RefPaid(uint refId, address indexed refOwner, uint amount);
event RefCreated(uint refId, address indexed wallet);
constructor () public {
refIdCounter = 0;
refCutPerc = 12;
}
// creates a new refid if address has none
function createRefId() public {
require(refId[msg.sender] == 0);
refIdCounter++;
refId[msg.sender] = refIdCounter;
refIdAddress[refIdCounter] = msg.sender;
refCut[refIdCounter] = refCutPerc;
emit RefCreated(refIdCounter, msg.sender);
}
// used to set cut per referrer
function setRefCut(uint _refId, uint _cut) public contract_onlyOwner {
refCut[_refId] = _cut;
}
// user can query his own ref data, not that of others
function queryRefId() public view returns(uint _refId, uint _refCut, address _address) {
uint _id = refId[msg.sender];
return (_id, refCut[_id], refIdAddress[_id]);
}
}
// new and old chibi contract
contract ChibiInterface {
function queryChibiDNA(uint) public pure returns (
uint16[13]
) {}
function ownerOf(uint256) public pure returns (address) {}
// legacy support old chibi contract
function queryChibi(uint) public pure returns (
string,
string,
uint16[13],
uint256,
uint256,
uint,
uint
) {}
}
contract WeaponGenesInterface {
function generateData(uint _tokenId) public view returns (uint, uint);
function generateRareMythicData(uint _tokenId) public view returns (uint);
function generateLegendaryData(uint _tokenId) public view returns (uint);
}
/**
* Weapons for Chibis
*
*/
contract Weapons is ERC721Full, Referral {
// couple events
event WeaponClaimed(address indexed from, uint chibiId, uint weaponTokenId, uint weaponRarity, uint weaponType);
event WeaponSaleBought(address indexed from, address indexed to, uint weaponTokenId, uint weaponPricePlayer, uint weaponPrice);
event WeaponBought(address indexed from, uint weaponTokenId, uint weaponRarity, uint weaponType);
event WeaponMintedToAddr(address indexed from, uint weaponTokenId, uint weaponRarity, uint weaponType, string weaponCode);
event WeaponForSale(address indexed from, uint weaponTokenId, uint weaponPrice);
event WeaponSaleCancelled(address indexed from, uint weaponTokenId);
uint uniqueCounter;
ChibiInterface chibiContract;
WeaponGenesInterface genesContract;
// default weapon price
uint _weaponPrice;
uint _rareWeaponPrice;
uint _mythicWeaponPrice;
uint _legendaryWeaponPrice;
// sell weapon internally
mapping(uint256 => uint256) private _weaponSalePrice;
// mapping for Chibi to claim weapon
mapping(uint256 => bool) private _weaponClaimed;
// our comission
uint comission;
// for players putting weapons up, to avoid super low prices from botters
uint minPrice;
struct WeaponsData {
uint rarity;
uint weaponType;
}
bool public gameState;
bool public gameStateClaim;
mapping(uint256 => WeaponsData) private weapons;
constructor () public {
// min price people can put up weapons
minPrice = 100;
_weaponPrice = 100;
_rareWeaponPrice = 200;
_mythicWeaponPrice = 300;
_legendaryWeaponPrice = 400;
uniqueCounter = 0;
infoUrlPrefix = "https://chibifighters.io/api/weapon.php?id=";
// set comission percentage inverted
comission = 80;
gameState = true;
gameStateClaim = true;
}
// returns min price for weapon sale to avoid cheap sales
function queryMinPrice() public view returns (uint price) {
return minPrice;
}
function queryDefaultSalePrice(uint rarity) public view returns (uint price) {
if (rarity == 0) {
return _weaponPrice;
}else
if (rarity == 1) {
return _rareWeaponPrice;
}else
if (rarity == 2) {
return _mythicWeaponPrice;
}else
if (rarity == 3) {
return _legendaryWeaponPrice;
}
return 0;
}
// returns min price for weapon sale to avoid cheap sales
function setMinPrice(uint _minPrice) public contract_onlyOwner returns (uint price) {
minPrice = _minPrice;
return minPrice;
}
// returns min price for weapon sale to avoid cheap sales
function setGameState(bool _paused) public contract_onlyOwner returns (bool paused) {
gameState = _paused;
return gameState;
}
// returns min price for weapon sale to avoid cheap sales
function setGameStateClaim(bool _paused) public contract_onlyOwner returns (bool paused) {
gameStateClaim = _paused;
return gameState;
}
function queryWeaponData(uint _tokenId) public view returns (uint tokenId, address owner, uint rarity, uint weaponType) {
return (
_tokenId,
ownerOf(_tokenId),
weapons[_tokenId].rarity,
weapons[_tokenId].weaponType
);
}
// check if chibi already claimed weapon
function queryChibiClaimed(uint chibiId) public view returns (bool success) {
return _weaponClaimed[chibiId];
}
function setCommission(uint percent) public contract_onlyOwner returns(bool success) {
comission = 100 - percent;
return true;
}
function getCommission() public view contract_onlyOwner returns(uint _comission) {
return 100 - comission;
}
function putWeaponForSale(uint tokenId, uint price) public notPaused returns (bool success) {
require (msg.sender == ownerOf(tokenId));
require (price >= minPrice);
_weaponSalePrice[tokenId] = price;
approve(this, tokenId);
emit WeaponForSale(msg.sender, tokenId, price);
return true;
}
function cancelWeaponSale(uint tokenId) public returns (bool success) {
require (msg.sender == ownerOf(tokenId));
_weaponSalePrice[tokenId] = 0;
// remove approval from contract
_clearApproval(msg.sender, tokenId);
emit WeaponSaleCancelled(msg.sender, tokenId);
return true;
}
function buySaleWeapon(uint tokenId) public payable notPaused returns (bool success) {
require(msg.sender != ownerOf(tokenId));
require(_weaponSalePrice[tokenId] > 0);
require(msg.value == _weaponSalePrice[tokenId]);
require(_isApprovedOrOwner(this, tokenId));
address _to = msg.sender;
require(_to != address(0));
_weaponSalePrice[tokenId] = 0;
address _from = ownerOf(tokenId);
uint finalPrice = msg.value / 100 * comission;
// transfer weapon
_removeTokenFrom(_from, tokenId);
_addTokenTo(_to, tokenId);
_clearApproval(msg.sender, tokenId);
emit Transfer(_from, _to, tokenId);
// transfer ether
_from.transfer(finalPrice);
emit WeaponSaleBought(_from, _to, tokenId, finalPrice, msg.value);
return true;
}
// price for default weapons
function setWeaponPrice(uint mode, uint _setWeaponPrice) public contract_onlyOwner returns(bool success, uint weaponPrice) {
if (mode == 0) {
_weaponPrice = _setWeaponPrice;
}else
if (mode == 1) {
_rareWeaponPrice = _setWeaponPrice;
}else
if (mode == 2) {
_mythicWeaponPrice = _setWeaponPrice;
}else
if (mode == 3) {
_legendaryWeaponPrice = _setWeaponPrice;
}
return (true, _setWeaponPrice);
}
// set chibi contract
function setChibiAddress(address _address) public contract_onlyOwner returns (bool success) {
chibiContract = ChibiInterface(_address);
return true;
}
// set genes contract
function setGenesAddress(address _address) public contract_onlyOwner returns (bool success) {
genesContract = WeaponGenesInterface(_address);
return true;
}
// get dna to claim weapons (only way to get founder weapons)
function getChibiWeaponDna(uint _chibiId) internal view returns (uint weapon, uint rarity) {
uint16[13] memory _dna = chibiContract.queryChibiDNA(_chibiId);
return (_dna[7], _dna[8]);
}
// buy a random weapon, can be anything from common to legendary
function buyWeapon(uint amount, uint _refId) public payable notPaused {
require(_weaponPrice.mul(amount) == msg.value);
// founder weapons can not be bought, and nothing that doesn't exist yet
for (uint i=0;i<amount;i++) {
uniqueCounter++;
require(!_exists(uniqueCounter));
// mint also triggers transfer event
_mint(address(msg.sender), uniqueCounter);
(uint _weaponRarity, uint _weaponType) = genesContract.generateData(uniqueCounter);
weapons[uniqueCounter].rarity = _weaponRarity;
weapons[uniqueCounter].weaponType = _weaponType;
emit WeaponBought(msg.sender, uniqueCounter, _weaponRarity, _weaponType);
}
if (refIdAddress[_refId] != address(0) && msg.sender != refIdAddress[_refId]) {
uint amountRef = msg.value.mul(refCut[_refId]).div(100);
refIdAddress[_refId].transfer(amountRef);
emit RefPaid(_refId, refIdAddress[_refId], amountRef);
}
}
// buy a guaranteed rare weapon
function buyWeaponRare(uint amount, uint _refId) public payable notPaused {
require(_rareWeaponPrice.mul(amount) == msg.value);
// founder weapons can not be bought, and nothing that doesn't exist yet
for (uint i=0;i<amount;i++) {
uniqueCounter++;
require(!_exists(uniqueCounter));
// mint also triggers transfer event
_mint(address(msg.sender), uniqueCounter);
uint _weaponType = genesContract.generateRareMythicData(uniqueCounter);
weapons[uniqueCounter].rarity = 1;
weapons[uniqueCounter].weaponType = _weaponType;
emit WeaponBought(msg.sender, uniqueCounter, 1, _weaponType);
}
if (refIdAddress[_refId] != address(0) && msg.sender != refIdAddress[_refId]) {
uint amountRef = msg.value.mul(refCut[_refId]).div(100);
refIdAddress[_refId].transfer(amountRef);
emit RefPaid(_refId, refIdAddress[_refId], amountRef);
}
}
// buy a guaranteed mythic weapon
function buyWeaponMythic(uint amount, uint _refId) public payable notPaused {
require(_mythicWeaponPrice.mul(amount) == msg.value);
for (uint i=0;i<amount;i++) {
uniqueCounter++;
require(!_exists(uniqueCounter));
// mint also triggers transfer event
_mint(address(msg.sender), uniqueCounter);
uint _weaponType = genesContract.generateRareMythicData(uniqueCounter);
weapons[uniqueCounter].rarity = 2;
weapons[uniqueCounter].weaponType = _weaponType;
emit WeaponBought(msg.sender, uniqueCounter, 2, _weaponType);
}
if (refIdAddress[_refId] != address(0) && msg.sender != refIdAddress[_refId]) {
uint amountRef = msg.value.mul(refCut[_refId]).div(100);
refIdAddress[_refId].transfer(amountRef);
emit RefPaid(_refId, refIdAddress[_refId], amountRef);
}
}
// buy a guaranteed legendary weapon
function buyWeaponLegendary(uint amount, uint _refId) public payable notPaused {
require(_legendaryWeaponPrice.mul(amount) == msg.value);
for (uint i=0;i<amount;i++) {
uniqueCounter++;
require(!_exists(uniqueCounter));
// mint also triggers transfer event
_mint(address(msg.sender), uniqueCounter);
uint _weaponType = genesContract.generateLegendaryData(uniqueCounter);
weapons[uniqueCounter].rarity = 3;
weapons[uniqueCounter].weaponType = _weaponType;
emit WeaponBought(msg.sender, uniqueCounter, 3, _weaponType);
}
if (refIdAddress[_refId] != address(0) && msg.sender != refIdAddress[_refId]) {
uint amountRef = msg.value.mul(refCut[_refId]).div(100);
refIdAddress[_refId].transfer(amountRef);
emit RefPaid(_refId, refIdAddress[_refId], amountRef);
}
}
// mint weapon as result of voucher purchase or what not
// code is used to identify weapon and apply required stats
function mintWeaponToAddr(uint _weaponRarity, uint _weaponType, address _receiver, string _code) public mintAllowed(msg.sender) {
if (_weaponType < 10 || (_weaponType>=8000 && _weaponType<=8013)) revert();
uniqueCounter++;
require(!_exists(uniqueCounter));
// mint also triggers transfer event
_mint(address(_receiver), uniqueCounter);
weapons[uniqueCounter].rarity = _weaponRarity;
weapons[uniqueCounter].weaponType = _weaponType;
emit WeaponMintedToAddr(_receiver, uniqueCounter, _weaponRarity, _weaponType, _code);
}
// Chibis can claim their initial weapon
// that is also the only way to get a founder weapon
//
function claimWeapon(uint _chibiId) public claimNotPaused {
require(chibiContract.ownerOf(_chibiId) == msg.sender);
require(_weaponClaimed[_chibiId] == false);
uniqueCounter++;
// mark claimed
_weaponClaimed[_chibiId] = true;
// get weapon dna of chibi
(uint _weaponType, uint _chibiRarity) = getChibiWeaponDna(_chibiId);
_mint(address(msg.sender), uniqueCounter);
weapons[uniqueCounter].weaponType = _weaponType;
if (_weaponType < 10 || _weaponType > 7999) {
weapons[uniqueCounter].rarity = 3;
} else {
// rarity comes from chibi when claimed, however legendary chibis still get just a mythic weapon since legendary weapons are either bought or made with a fragment
if (_chibiRarity == 3) weapons[uniqueCounter].rarity = 2;
else weapons[uniqueCounter].rarity = _chibiRarity;
}
emit WeaponClaimed(msg.sender, _chibiId, uniqueCounter, weapons[uniqueCounter].rarity, weapons[uniqueCounter].weaponType);
}
// old chibi contract
function claimWeaponOld(uint _chibiId) public notPaused {
require(chibiContract.ownerOf(_chibiId) == msg.sender);
require(_weaponClaimed[_chibiId] == false);
uniqueCounter++;
// mark claimed
_weaponClaimed[_chibiId] = true;
// get weapon dna of chibi
uint16[13] memory _dna;
(
,
,
_dna,
,
,
,
) = chibiContract.queryChibi(_chibiId);
uint _weaponType = _dna[7];
uint _chibiRarity = _dna[8];
_mint(address(msg.sender), uniqueCounter);
weapons[uniqueCounter].weaponType = _weaponType;
if (_weaponType < 10 || _weaponType > 7999) {
weapons[uniqueCounter].rarity = 3;
}else {
// rarity comes from chibi when claimed, however legendary chibis still get just a mythic weapon since legendary weapons are either bought or made with a fragment
if (_chibiRarity == 3) weapons[uniqueCounter].rarity = 2;
else weapons[uniqueCounter].rarity = _chibiRarity;
}
emit WeaponClaimed(msg.sender, _chibiId, uniqueCounter, weapons[uniqueCounter].rarity, weapons[uniqueCounter].weaponType);
}
function queryForSale(uint _tokenId) public view returns (uint price, address owner) {
require(_isApprovedOrOwner(this, _tokenId));
return (
_weaponSalePrice[_tokenId],
ownerOf(_tokenId)
);
}
/**
* @dev Send Ether to owner
* @param _address Receiving address
* @param _amountWei Amount in WEI to send
**/
function weiToOwner(address _address, uint _amountWei) public contract_onlyOwner returns (bool success) {
require(_amountWei <= address(this).balance);
_address.transfer(_amountWei);
return true;
}
function ERC20ToOwner(address _to, uint256 _amount, ERC20Interface _tokenContract) public contract_onlyOwner {
_tokenContract.transfer(_to, _amount);
}
function ERC20ClassicToOwner(address _to, uint256 _amount, ERC20InterfaceClassic _tokenContract) public contract_onlyOwner {
_tokenContract.transfer(_to, _amount);
}
function queryERC20(ERC20Interface _tokenContract) public view contract_onlyOwner returns (uint) {
return _tokenContract.balanceOf(this);
}
modifier notPaused() {
require(gameState == false);
_;
}
modifier claimNotPaused() {
require(gameStateClaim == false);
_;
}
}
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CODE Weapons
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